you can drive it some time Stan. I think the ride is better than OME, I never liked how much body roll those give you. The Slee springs keep you upright more.. you'll notice it on curves.
And the bumper, drawers, fridge and sliders don't come off that often so I guess that means I'm always loaded. I could see these being too harsh if that weren't the case, but I probably have the equivalent of 3 guys in the cargo area at all times. When I switched from OME J springs to the Slee's in the 80 it was a huge upgrade- this one hasn't felt that substantial, but again it's just the back.